EP 0204293 A1 19861210 - Solenoid construction and method for making the same.
Title (en)
Solenoid construction and method for making the same.
Title (de)
Solenoidanordnung und ihr Herstellungsverfahren.
Title (fr)
Solenoide et sa méthode de fabrication.
Publication
Application
Priority
US 74064085 A 19850603
Abstract (en)
A proportional solenoid has a fixed pole piece (39) and a movable armature (45), both fitted into the bore (52) of a guide tube (36) that provides the required concentricity between the fixed and movable pole pieces (39) and (45). One of the pole pieces has a cylindrical recess (56) and the other pole piece has a reduced diameter cylindrical nose (62) that is complementary to cylindrical recess (56). A radially inwardly facing frusto-conical surface (95) is formed in cylindrical nose (62) to be disposed within recess (56) of the other pole piece and provide a frusto-conical pole piece section producing a linear force-stroke curve.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
H01F 7/13 (2013.01 - EP US); H01F 7/16 (2013.01 - EP US); H01F 7/1607 (2013.01 - EP US); H01F 2007/085 (2013.01 - EP US)
Citation (search report)
- [Y] US 4166991 A 19790904 - HANER LAMBERT [US]
- [Y] DE 3318034 A1 19841122 - KROME WALTER DIPL ING
- [A] US 4127835 A 19781128 - KNUTSON DALE A
- [AP] EP 0146951 A2 19850703 - LISK CO G W [US]
- [A] EP 0024909 A1 19810311 - LEDEX INC [US]
- [A] DE 847465 C 19520825 - WILHELM BINDER FA
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
US 4604600 A 19860805; CA 1254257 A 19890516; EP 0204293 A1 19861210; JP S61287108 A 19861217
DOCDB simple family (application)
US 74064085 A 19850603; CA 505450 A 19860327; EP 86107429 A 19860602; JP 12784686 A 19860602